电工技术学报  2019, Vol. 34 Issue (14): 3066-3073    DOI: 10.19595/j.cnki.1000-6753.tces.180845
高电压与绝缘 |
不同电极面型的两间隙气体开关电场优化设计
王宇, 姚伟博, 刘巧珏, 张永民, 邱爱慈
电力设备电气绝缘国家重点实验室(西安交通大学) 西安 710049
Optimization Design of Two Gap Gas Switch Electric Field with Different Electrode Profiles
Wang Yu, Yao Weibo, Liu Qiaojue, Zhang Yongmin, Qiu Aici
State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University Xi’an 710049 China
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摘要 在高压放电装置以及脉冲气体激光器领域中,电极面型所决定的极间电场直接影响装置性能。选取球头、平球头、Chang、Bruce四种面型的电极,使用有限元分析法对四种面型电极电场在三维空间内进行数值计算,找出各个电极二维截面电场强度最大偏差的位置,给修改造型提供依据。设置电极半径13mm,间距在7~10mm之间变化,分别构建四种电极曲面,设置两电极电势差为30kV,计算得到四种面型的d-f曲线,确定不同间距下最佳面型电极,对工程实践提供指导。在平球头与Bruce电极中心设置10μm半球凸起凹陷,测定烧蚀喷溅对于间隙电场畸变率的影响。
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王宇
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刘巧珏
张永民
邱爱慈
关键词 电极面型有限元方法Bruce电场畸变    
Abstract:In the field of high voltage discharge device and pulse gas laser, the polar electric field determined by electrode profiles directly affects the device performance. This paper selects four different types of profiles, i.e. ball electrode, flat bulb electrode, Chang and Bruce, and calculates their respective electric fields in three-dimensional space using the finite element method. The maximum deviation position from expected uniformity in the two-dimensional cross section of each electrode is found, which provides a basis for designing new electrodes. Set the electrode radius to 13mm and range to 7~10mm, four electrode profiles are constructed. Set the electrical potential difference to 30kV, the d-f curves of four kinds of profiles are calculated to determine the best electrode profile at different intervals to provide guidance for engineering practice. In the center of the ball and Bruce electrodes, a 10 microns hemisphere bulge was placed at the center of the ball and the Bruce electrodes, and the clearance rate of the electric field distortion from the impurities and erosion jet was measured.
Key wordsElectrode profile    finite element method    Bruce    distortion   
收稿日期: 2018-05-15      出版日期: 2019-07-29
PACS: TM89  
通讯作者: 王宇 男1994年生,硕士研究生,研究方向为高电压脉冲功率技术。E-mail:1515746540@qq.com   
作者简介: 姚伟博 男1983年生,博士研究生,研究方向为脉冲功率技术。E-mail:yaoweibo@nint.ac.cn;
引用本文:   
王宇, 姚伟博, 刘巧珏, 张永民, 邱爱慈. 不同电极面型的两间隙气体开关电场优化设计[J]. 电工技术学报, 2019, 34(14): 3066-3073. Wang Yu, Yao Weibo, Liu Qiaojue, Zhang Yongmin, Qiu Aici. Optimization Design of Two Gap Gas Switch Electric Field with Different Electrode Profiles. Transactions of China Electrotechnical Society, 2019, 34(14): 3066-3073.
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